I love these Specifically the clear one, I had the white one as well and it was fine, but I like the fact that the clear on shows off the phone more. I've had their Neo-cases before on some of my other phones and though they're still a thin, they were just too bulky on the edges for my taste.

http://www.amazon.com/Spigen%C2%AE-Samsung-Warranty-Japanese-Protector/dp/B00I3ULRZG/ref=sr_1_19?s=wireless&ie=UTF8&qid=1402765223&sr=1-19&keywords=galaxy+s5+case

With the case, the phone is 1.1 cm thick. It comes with a screen protector and is pretty shock-proof.